I've only seen one online shop that sells Zebralight. As Jash has said, the 'high end' lights most brick and mortar shops offer is Led Lenser. Your only other options tend to be previous generation Maglites or plastic unknown brand torches.
The online retailers offer far more selection but you have to pay the exchange rate plus the 'Australia tax' which adds a premium to almost anything you buy here, even games or music that involve no physical product or staff member who needs a salary.
Online retailers start to get really expensive depending on brand. I've seen Surefire P1Rs and Streamlight Stinger HLs quoted at $450-$470 Australian and you are still required to buy a plug adaptor so the charger works!!!
As an example of price:
Zebralight SC600w MKIII 18650 XHP35 - $164.95. They retail online for $89US which is only $117 Australian.
Hopefully when Amazon opens their doors here they will offer an alternative to high local prices, second hand on eBay or importing direct and having to pay large postage costs and having to clear customs.
Is there any reason you want to order a light here rather than your hime country?